Reading-line adjusting device of image scanner

Abstract

A reading-line adjusting device of an image scanner includes an image sensing module, a shaft, a bush member, and a fixing and adjusting member. The image sensing module has a reading line for sensing an electronic signal of an image. The shaft is arranged in a first direction. The bush member includes a base and a bushing body. The base is coupled with the image sensing module. The bushing body is sleeved around the shaft and moved along the shaft. The fixing and adjusting member is used for fixing the base of the bush member onto the image sensing module and adjusting an angle between the base and the image sensing module such that the reading line of the image sensing module is arranged in a second direction.

1. A reading-line adjusting device of an image scanner for scanning an object on a scanning platform, said reading-line adjusting device comprising:
 an image sensing module having a reading line for sensing an electronic signal of an image; 
 a shaft arranged in a first direction; 
 a bush member comprising a base coupled with said image sensing module, and a bushing body sleeved around said shaft and moved along said shaft; and 
 a fixing and adjusting member for fixing said base of said bush member onto one side of said image sensing module and adjusting an angle between said base and said side of said image sensing module, wherein said side of said image sensing module is perpendicular to said scanning platform, such that said reading line of said image sensing module is arranged in a second direction relative to said first direction. 
 
   
   
     2. The reading-line adjusting device according to  claim 1  wherein said first direction is a scanning direction. 
   
   
     3. The reading-line adjusting device according to  claim 1  wherein said second direction is perpendicular to said first direction. 
   
   
     4. The reading-line adjusting device according to  claim 1  wherein said image sensing module includes a charge-couple device for sensing said electronic signal of said image. 
   
   
     5. The reading-line adjusting device according to  claim 1  wherein said bushing body is a hollow cylinder made of metallic material. 
   
   
     6. The reading-line adjusting device according to  claim 5  wherein said metallic material is copper. 
   
   
     7. The reading-line adjusting device according to  claim 1  wherein said base of said bush member is made of plastic material. 
   
   
     8. The reading-line adjusting device according to  claim 1  wherein said fixing and adjusting member includes at least two screws penetrating through corresponding first bolt holes of said base and then secured to corresponding second bolt holes in said side of said image sensing module, thereby fixing said base of said bush member onto said side of said image sensing module. 
   
   
     9. The reading-line adjusting device according to  claim 8  wherein said angle between said base of said bush member and said side of said image sensing module is adjustable by rotating said screws such that said reading line of said image sensing module is arranged in a second direction relative to said first direction. 
   
   
     10. A reading-line adjusting device of an image scanner for scanning an object on a scanning platform, said reading-line adjusting device comprising:
 an image sensing module having a reading line for sensing an electronic signal of an image; 
 a shaft arranged in a scanning direction; 
 a bush member comprising a base coupled with said image sensing module, and a bushing body sleeved around said shaft and moved along said shaft; and 
 a fixing and adjusting member for fixing said base of said bush member onto one side of said image sensing module and adjusting an angle between said base and said side of said image sensing module, wherein said side of said image sensing module is perpendicular to said scanning platform, such that said reading line of said image sensing module is arranged in a direction perpendicular to said scanning direction. 
 
   
   
     11. The reading-line adjusting device according to  claim 10  wherein said image sensing module includes a charge-couple device for sensing said electronic signal of said image. 
   
   
     12. The reading-line adjusting device according to  claim 10  wherein said bushing body is a hollow cylinder made of metallic material. 
   
   
     13. The reading-line adjusting device according to  claim 12  wherein said metallic material is copper. 
   
   
     14. The reading-line adjusting device according to  claim 10  wherein said base of said bush member is made of plastic material. 
   
   
     15. The reading-line adjusting device according to  claim 10  wherein said fixing and adjusting member includes at least two screws penetrating through corresponding first bolt holes of said base and then secured to corresponding second bolt holes in said side of said image sensing module, thereby fixing said base of said bush member onto said side of said image sensing module. 
   
   
     16. The reading-line adjusting device according to  claim 15  wherein said angle between said base of said bush member and said side of said image sensing module is adjustable by rotating said screws such that said reading line of said image sensing module is arranged in a direction perpendicular to said scanning direction. 
   
   
     17. A method for adjusting a reading line of an image scanner for scanning an object on a scanning platform, comprising the steps of:
 (a) providing a reading-line adjusting device, wherein said reading-line adjusting device comprises: 
 an image sensing module; 
 a shaft arranged in a scanning direction; 
 a bush member comprising a base coupled with said image sensing module, and a bushing body sleeved around said shaft and moved along said shaft; and 
 a fixing and adjusting member for fixing said base of said bush member onto one side of said image sensing module, wherein said side of said image sensing module is perpendicular to said scanning platform; and 
 (b) adjusting an angle between said base and said side of said image sensing module via said fixing and adjusting member such that said reading line of said image sensing module is arranged in a direction perpendicular to said scanning direction. 
 
   
   
     18. The method according to  claim 17  wherein said fixing and adjusting member includes at least two screws penetrating through corresponding first bolt holes of said base and then secured to corresponding second bolt holes in said side of said image sensing module, thereby fixing said base of said bush member onto said side of said image sensing module. 
   
   
     19. The method according to  claim 17  wherein said angle between said base of said bush member and said side of said image sensing module is adjustable by rotating said screws such that said reading line of said image sensing module is arranged in a direction perpendicular to said scanning direction. 
   
   
     20. The method according to  claim 17  wherein said image sensing module includes a charge-couple device for sensing an electronic signal of an image.